{Spam?} Re: can't get a crash dump

[Roberto Nunnari]

Roberto Nunnari wrote:

> Roberto Nunnari wrote:
> 
>> Kris Kennaway wrote:
>>
>>> On Sun, Feb 20, 2005 at 12:34:42AM +0100, Roberto Nunnari wrote:
>>>
>>>> Kris Kennaway wrote:
>>>>
>>>>> On Thu, Feb 17, 2005 at 12:40:56PM +0100, Roberto Nunnari wrote:
>>>>>
>>>>>
>>>>>> another crash.. and in /var/log/messages I see:
>>>>>>
>>>>>> Feb 17 12:20:50 jupiter savecore: no dumps found
>>>>>>
>>>>>> Any hints, please?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> If you watch it panic (or trigger one; break to ddb and use call
>>>>> doadump), does it dump?
>>>>>
>>>>
>>>> Yes. Once in ddb, if I >call doadump it dumps! But I have not
>>>> yet been that lucky to see it crash..
>>>
>>>
>>>
>>>
>>> You can remove KDB_UNATTENDED from your kernel configuration, and it
>>> should drop to DDB when it panics, so you can catch the panic then.
>>>
>>
>> I don't have KDB_UNATTENDED in my kernel configuration..
>>
>> if you would like to give it a look you'll find it here:
>> http://www.nunnisoft.ch/JUPITER
>> and here is my rc.conf:
>> http://www.nunnisoft.ch/rc.conf
>>
>> but I just found out something was wrong with perl..
>> I had perl 5.6.2 and perl-5.8.6_2.. but calling
>> use.perl system would let me without any soft links
>> in /usr/bin and /usr/local/bin, while use.perl port
>> would create links for 5.6.2.. so I deinstalled 5.6.2
>> and portupgrade -f 5.8.6.. hope that fixes something..
>> I'll let you know.
> 
> 
> That alone didn't fix anything.. but:
> fix awstats configuration (that uses perl)
> and
> removed linprocfs /compat/linux/proc linprocfs rw 0 0
> from /etc/fstab
> 
> seems to have fixed it.. at least it hasn't crashed for the
> last nearly two days...

hehe.. talked to early.. just had another crash.. and as usual
it didn't dump, and it didn't enter ddb.. it just reset!

I have no more clues.. ideas anyone?

I somehow got the impression that it happens when there's
a ssh/ssl connection.

Any hints?


> 
> But.. apart from that.. I still don't understand why the
> system would not dump nor enter ddb upon crash!
> 
> Could the fact that I have an old keyboard/mouse/video switcher
> attached to the crashing computer?
> 
> I mean.. what if upon crash, trying to enter ddb the system
> senses that there is no keyboard attached (because the
> switcher is set to another computer)?
> 
> Or.. maybe the fault that causes the crash is so severe
> that the kernel don't get a chance to do anything (doadump,
> nor enter ddb)?
> 
> Best regards.
> 
> 
>>
>> I'm going to get some sleep now..
>>
>> Thank you for your time, Kris.
>>
>> Best regards.
>>
>>
>>> Kris
>>>
>>
>>
> 
> 


-- 
               Roberto Nunnari -software engineer-
                mailto:roberto.nunnari at supsi.ch
  Scuola Universitaria Professionale della Svizzera Italiana
              Dipartimento Tecnologie Innovative
                   http://www.dti.supsi.ch
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